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Humanized Mouse Model to Study Bacterial Infections Targeting the Microvasculature
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Published on: April 1, 2014

Fatal meningococcal septicemia

F G Dalldorf, J C Jennette

    Archives of Pathology & Laboratory Medicine
    |January 1, 1977
    PubMed

    Insights

    Meningococcal septicemia involves two main processes: pulmonary microvascular thrombosis causing cor pulmonale and disseminated intravascular coagulation leading to organ damage. Neither heparin nor current treatments fully prevent these severe outcomes.

    Area of Science:

    • Pathology
    • Microbiology
    • Critical Care Medicine

    Background:

    • Meningococcal septicemia is a severe infection with high mortality.
    • Understanding its pathogenesis is crucial for developing effective treatments.

    Observation:

    • Seven fatal cases of meningococcal septicemia were analyzed.
    • Morphologic and clinical findings were correlated with experimental data.

    Findings:

    • Two distinct pathogenetic mechanisms were identified: pulmonary microvascular thrombosis and disseminated intravascular coagulation.
    • Pulmonary thrombosis leads to cor pulmonale, unresponsive to heparin.
    • Disseminated intravascular coagulation causes adrenal and renal infarction, partially manageable with heparin, but without improving survival.

    Implications:

    • Current understanding of meningococcal septicemia pathogenesis is incomplete.
    • Heparin therapy does not improve survival despite modifying some aspects of the disease.
    • Further research is needed to target the primary life-threatening mechanisms.

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